A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
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There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
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There's a café in France which charges €7 for a coffee to rude customers and €1.40 to people who talk politely to staff.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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